private void InsertMembers(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip)
{
var objs = current.GetValue(tip.Property) as IEnumerable;
DataTable middle = null;
foreach (DomainObject obj in objs)
{
if (obj.IsEmpty())
{
continue;
}
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
if (child.Type == DataTableType.ValueObject)
{
//我们需要为ValueObject补充编号
(obj as IValueObject).TrySetId(Guid.NewGuid());
}
child.InsertMember(root, current, obj);
if (middle == null)
{
middle = child.Middle;
}
}
if (middle != null)
{
middle.InsertMiddle(root, current, objs);
}
}
public override void OnInserted(DomainObject obj, DataTable table)
{
DataContext.Current.OpenLock(QueryLevel.Single);
var id = (obj as IEntityObject).GetIdentity();
var parent = obj.GetValue <IEntityObject>(this.ParentProperty);
if (SqlContext.GetDbType() == DatabaseType.SQLServer)
{
if (parent.IsEmpty())
{
//自身为根
DataPortal.Direct(obj.ObjectType, (conn) =>
{
var sql = string.Format("update dbo.{0} set lft=@lft,rgt=@rgt,rootId=@id where id=@id;", table.Name);
conn.Execute(sql, new { lft = 0, rgt = 1, id });
});
}
else
{
var parentId = parent.GetIdentity();
var sql = _getUpdateLRForInsertSqlBySqlServer(table.Name);
//显示开启锁
DataPortal.Direct(obj.ObjectType, (conn) =>
{
conn.Execute(sql, new { id, parentId });
});
}
return;
}
throw new MapperNotImplementedException(obj.ObjectType, "insert");
}
/// <summary>
/// 根据当前属性值，删除成员
/// </summary>
/// <param name="root"></param>
/// <param name="parent"></param>
/// <param name="current"></param>
/// <param name="tip"></param>
private void DeleteMemberByPropertyValue(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip)
{
var obj = current.GetValue(tip.Property) as DomainObject;
if (!obj.IsEmpty())
{
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
child.DeleteMember(root, parent, obj);
}
}
/// <summary>
/// 获取基元类型的属性值
/// </summary>
/// <returns></returns>
private static object GetPrimitivePropertyValue(DomainObject obj, PropertyRepositoryAttribute tip)
{
var value = obj.GetValue(tip.Property);
if (!tip.IsEmptyable)
{
return(value);
}
var e = (IEmptyable)value;
return(e.IsEmpty() ? null : e.GetValue()); //可以存null值在数据库
}
/// <summary>
/// 修改current对应的集合属性
/// </summary>
/// <param name="root"></param>
/// <param name="parent"></param>
/// <param name="current"></param>
/// <param name="tip"></param>
private void UpdateMembers(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip)
{
var objs = current.GetValue(tip.Property) as IEnumerable;
foreach (DomainObject obj in objs)
{
if (!obj.IsEmpty())
{
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
//方法内部会检查是否为脏，为脏的才更新
child.UpdateMember(root, current, obj);
}
}
}
private void InsertAndCollectValueObject(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip, DynamicData data)
{
var field = GetQuoteField(this, tip.PropertyName);
var obj = current.GetValue(tip.Property) as DomainObject;
if (obj.IsEmpty())
{
data.Add(field.Name, Guid.Empty);
}
else
{
(obj as IValueObject).TrySetId(Guid.NewGuid());
var id = GetObjectId(obj);
data.Add(field.Name, id);
//保存数据
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
child.InsertMember(root, current, obj);
}
}
/// <summary>
/// 根据对象当前定义的属性，删除成员
/// </summary>
/// <param name="root"></param>
/// <param name="parent"></param>
/// <param name="current"></param>
/// <param name="tip"></param>
private void DeleteMembersByPropertyValue(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip)
{
var objs = current.GetValue(tip.Property) as IEnumerable;
DeleteMembers(root, parent, current, objs, tip);
}
private void InsertAndCollectValue(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip, DynamicData data)
{
if (this.IsSnapshot && !tip.Snapshot)
{
return; //如果是快照，那么需要过滤不参与快照的属性
}
//if (tip.TrySaveData(this.ObjectType, current, data)) return;
switch (tip.DomainPropertyType)
{
case DomainPropertyType.Primitive:
{
var value = GetPrimitivePropertyValue(current, tip);
data.Add(tip.PropertyName, value);
}
break;
case DomainPropertyType.PrimitiveList:
{
var value = current.GetValue(tip.Property);
//仅存中间表
var values = GetValueListData(value);
var child = GetChildTableByRuntime(this, tip); //无论是派生还是基类，基础表对应的中间表都一样
child.InsertMiddle(root, current, values);
}
break;
case DomainPropertyType.ValueObject:
{
InsertAndCollectValueObject(root, parent, current, tip, data);
}
break;
case DomainPropertyType.AggregateRoot:
{
var field = GetQuoteField(this, tip.PropertyName);
object obj = current.GetValue(tip.Property);
var id = GetObjectId(obj);
data.Add(field.Name, id);
}
break;
case DomainPropertyType.EntityObject:
{
var obj = current.GetValue(tip.Property) as DomainObject;
var id = GetObjectId(obj);
var field = GetQuoteField(this, tip.PropertyName);
data.Add(field.Name, id); //收集外键
//保存引用数据
if (!obj.IsEmpty())
{
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
child.InsertMember(root, current, obj);
}
}
break;
case DomainPropertyType.AggregateRootList:
{
//仅存中间表
var objs = current.GetValue(tip.Property) as IEnumerable;
var child = GetChildTableByRuntime(this, tip); //无论是派生还是基类，基础表对应的中间表都一样
child.Middle.InsertMiddle(root, current, objs);
}
break;
case DomainPropertyType.ValueObjectList:
case DomainPropertyType.EntityObjectList:
{
InsertMembers(root, parent, current, tip);
}
break;
}
}
/// <summary>
///
/// </summary>
/// <param name="root"></param>
/// <param name="parent"></param>
/// <param name="current"></param>
/// <param name="tip"></param>
/// <param name="data"></param>
/// <returns>当内部成员发生变化，返回true</returns>
private bool UpdateAndCollectChangedValue(DomainObject root, DomainObject parent, DomainObject current, PropertyRepositoryAttribute tip, DynamicData data)
{
switch (tip.DomainPropertyType)
{
case DomainPropertyType.Primitive:
{
if (current.IsPropertyChanged(tip.Property))
{
var value = GetPrimitivePropertyValue(current, tip);
data.Add(tip.PropertyName, value);
return(true);
}
}
break;
case DomainPropertyType.PrimitiveList:
{
if (current.IsPropertyChanged(tip.Property))
{
//删除老数据
var child = GetChildTableByRuntime(this, tip);
child.DeleteMiddleByMaster(root, current);
var value = current.GetValue(tip.Property);
//仅存中间表
var values = GetValueListData(value);
child.InsertMiddle(root, current, values);
return(true);
}
}
break;
//case DomainPropertyType.ValueObject:
// {
// if (current.IsPropertyChanged(tip.Property))
// {
// //删除原始数据
// DeleteMemberByOriginalData(root, parent, current, tip);
// //新增数据
// InsertAndCollectValueObject(root, parent, current, tip, data);
// return true;
// }
// }
// break;
case DomainPropertyType.AggregateRoot:
{
if (current.IsPropertyChanged(tip.Property))
{
var field = GetQuoteField(this, tip.PropertyName);
object obj = current.GetValue(tip.Property);
var id = GetObjectId(obj);
data.Add(field.Name, id);
return(true);
}
}
break;
case DomainPropertyType.ValueObject: //虽然值对象的成员不会变，但是成员的成员也许会改变
case DomainPropertyType.EntityObject:
{
if (current.IsPropertyChanged(tip.Property))
{
var obj = current.GetValue(tip.Property) as DomainObject;
if (tip.DomainPropertyType == DomainPropertyType.ValueObject)
{
(obj as IValueObject).TrySetId(Guid.NewGuid());
}
var id = GetObjectId(obj);
var field = GetQuoteField(this, tip.PropertyName);
data.Add(field.Name, id); //收集外键
//删除原始数据
DeleteMemberByOriginalData(root, parent, current, tip);
//保存引用数据
if (!obj.IsEmpty())
{
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
child.InsertMember(root, current, obj);
}
return(true);
}
else if (current.IsPropertyDirty(tip.Property))
{
//如果引用的内聚成员是脏对象，那么需要修改
var obj = current.GetValue(tip.Property) as DomainObject;
if (!obj.IsEmpty())
{
//从衍生表中找到对象表
var child = GetRuntimeTable(this, tip.PropertyName, obj.ObjectType);
child.UpdateMember(root, parent, obj);
}
return(true);
}
}
break;
case DomainPropertyType.AggregateRootList:
{
if (current.IsPropertyChanged(tip.Property))
{
//删除老数据
var child = GetChildTableByRuntime(this, tip);
child.Middle.DeleteMiddleByMaster(root, current);
//追加新数据
var objs = current.GetValue(tip.Property) as IEnumerable;
child.Middle.InsertMiddle(root, current, objs);
return(true);
}
}
break;
case DomainPropertyType.ValueObjectList:
case DomainPropertyType.EntityObjectList:
{
if (current.IsPropertyChanged(tip.Property))
{
//引用关系发生了变化，删除重新追加
//这里要注意，需要删除的是数据库的数据，所以要重新读取
//删除原始数据
DeleteMembersByOriginalData(root, parent, current, tip);
//加入新数据
InsertMembers(root, parent, current, tip);
return(true);
}
else if (current.IsPropertyDirty(tip.Property))
{
//引用关系没变，只是数据脏了
UpdateMembers(root, parent, current, tip);
return(true);
}
}
break;
}
return(false);
}
